Hello.
Save the Config.OD bit from being clobbered by coherency_setup(). This
bit, when set, fixes various errata in the early steppings of Au1x00 SOCs.
Unfortunately, the bit was write-only on the most early of them. In addition,
also restore the bit after a wakeup from sleep.
WBR, Sergei
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>